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/*
** Copyright 1998 - 2008 Double Precision, Inc.
** See COPYING for distribution information.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
const char *externalauth()
{
const char *p=getenv("TLS_EXTERNAL");
char *q, *r;
if (!p || !*p)
return NULL;
if ((q=malloc(strlen(p)+20)) == NULL)
return NULL;
strcat(strcpy(q, "TLS_SUBJECT_"), p);
for (r=q; *r; r++)
if (*r >= 'a' && *r <= 'z')
*r -= 'a' - 'A';
p=getenv(q);
free(q);
if (p && *p)
return p;
return 0;
}
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